<template>
  <div class="about">
    <h1>{{id ? '编辑' : '新建'}}文章</h1>
    <el-form label-width="120px" @submit.native.prevent="save">
      <el-form-item label="所属分类">
        <el-select v-model="model.categories" multiple>
          <el-option v-for="item in categories"
          :key="item._id"
          :label="item.name"
          :value="item._id"/>
        </el-select>
      </el-form-item>
      <el-form-item label="文章标题">
        <el-input v-model="model.title"></el-input>
      </el-form-item>
      <el-form-item label="文章详情">
        <vue-editor v-model="model.body"
        useCustomImageHandler
        @image-added="handleImageAdded"></vue-editor>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" native-type="submit">保存</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import {VueEditor} from 'vue2-editor'
import axios from "axios";
export default {
  name: "CategoryEdit",
  components: {
    VueEditor
  },
  props: {
    id: {}
  },
  data() {
    return {
      model: {
        name: ''
      },
      categories:[],
    }
  },
  created() {
    this.id && this.fetch()
    this.fetchCategories()
  },
  methods: {
    async save() {
      let res // eslint-disable-line no-unused-vars
      if (this.id) {
        res = await this.$http.put(`rest/articles/${this.id}`, this.model) // eslint-disable-line no-unused-vars
      } else {
        res = await this.$http.post('rest/articles', this.model) // eslint-disable-line no-unused-vars
      }
      this.$router.push('/articles/list')
      this.$message({
        type: 'success',
        message: '保存成功'
      })
    },
    async fetch(){
      const res = await this.$http.get(`rest/articles/${this.id}`)
      this.model = res.data
    },
    async fetchCategories(){
      const res = await this.$http.get(`rest/categories`)
      this.categories = res.data
    },
    // 富文本编辑器图片上传事件
    async handleImageAdded(file, Editor, cursorLocation, resetUploader) {
      const formData = new FormData();
      formData.append("file", file);

      const res = await this.$http.post('upload', formData)
      Editor.insertEmbed(cursorLocation, "image", res.data.url);
      resetUploader();
    }

  }

}
</script>

<style scoped>

</style>